code: def test_roc(roc_values):
      fpr, tpr = roc_values
  
      # test when list is given
      roc = plot.ROC(fpr, tpr)
      roc.plot()
  
      # test when np.array
      roc = plot.ROC(np.array(fpr), np.array(tpr))
      roc.plot()
  
imports: from functools import partial
  import sys
  from unittest.mock import Mock
  import numpy
  from matplotlib.testing.decorators import image_comparison
  from sklearn_evaluation import plot
label_desc: Use image node_id 6 for calling a global function with example usage: test_roc(roc_values) without return types